package aaa;
  
import java.io.BufferedReader;  
import java.io.IOException;  
import java.io.InputStreamReader;  
import java.io.PrintWriter;  
import java.net.URL;  
import java.net.URLConnection;  
import java.util.Map;

import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.log4j.Logger;  
  
/** 
 * ClassName: HttpRequestSender 
 * @version   
 * @since JDK 1.7  
 */  
public class HttpRequestSender {  
      
    private static Logger logger = Logger.getLogger(HttpRequestSender.class);  
      
    public static HttpResponse sendGet(String url, String queryString){  
        if(url == null || url.equals("")){  
            return null;  
        }  
        HttpRequest request = new HttpRequest(HttpResultType.STRING);  
        request.setUrl(url);  
        request.setMethod(HttpRequest.METHOD_GET);  
          
        if(queryString != null && !queryString.equals("")){  
            request.setQueryString(queryString);  
        }  
        HttpProtocolHandler httpProtocolHandler = HttpProtocolHandler.getInstance();  
        try {  
            HttpResponse httpResponse = httpProtocolHandler.execute(request, "", "");  
            return httpResponse;  
        } catch (HttpException e) {  
            logger.error("Fail with send GET request: ", e);  
        } catch (IOException e) {  
            logger.error("Fail with send GET request: ", e);  
        } catch (Exception e){  
            logger.error("Fail with send GET request: ", e);  
        }  
          
        return null;  
    }  
      
    public static HttpResponse sendPost(String url, NameValuePair[] nvp){  
        if(url == null || url.equals("")){  
            return null;  
        }  
        HttpRequest request = new HttpRequest(HttpResultType.STRING);  
        request.setUrl(url);  
        request.setMethod(HttpRequest.METHOD_POST);  
          
        if(nvp != null){  
            request.setParameters(nvp);  
        }  
        HttpProtocolHandler httpProtocolHandler = HttpProtocolHandler.getInstance();  
        try {  
            HttpResponse httpResponse = httpProtocolHandler.execute(request, "", "");  
            return httpResponse;  
        } catch (HttpException e) {  
            logger.error("Fail with send POST request: ", e);  
        } catch (IOException e) {  
            logger.error("Fail with send POST request: ", e);  
        } catch (Exception e){  
            logger.error("Fail with send POST request: ", e);  
        }  
          
        return null;  
    }  
  
    public static HttpResponse sendPost(String url, NameValuePair[] nvp, String fileNameParam,  
                                        String fileNamePath){  
        if(url == null || url.equals(""))  
            return null;  
  
        HttpRequest request = new HttpRequest(HttpResultType.STRING);  
        request.setUrl(url);  
        request.setMethod(HttpRequest.METHOD_POST);  
  
        if(nvp != null)  
            request.setParameters(nvp);  
  
        HttpProtocolHandler httpProtocolHandler = HttpProtocolHandler.getInstance();  
        try {  
            HttpResponse httpResponse = httpProtocolHandler.execute(request, fileNameParam, fileNamePath);  
            return httpResponse;  
        } catch (HttpException e) {  
            e.printStackTrace();  
        } catch (IOException e) {  
            e.printStackTrace();  
        } catch (Exception e){  
            e.printStackTrace();  
        }  
  
        return null;  
    }  
      
    public static HttpResponse sendPost(String url, Map<String, String> map){  
        NameValuePair[] nvpArray = null;  
        if(map != null && map.size() > 0){  
            nvpArray = new NameValuePair[map.size()];  
            int i = 0;  
            for(String key : map.keySet()){  
                NameValuePair nvp = new NameValuePair(key, map.get(key));  
                nvpArray[i++] = nvp;  
            }  
        }  
          
        return sendPost(url, nvpArray);  
    }  
  
    public static String sendPost(String url, String param) throws Exception{  
        PrintWriter out = null;  
        BufferedReader in = null;  
        String result = "";  
        try {  
            URL realUrl = new URL(url);  
            // 打开和URL之间的连接  
            URLConnection conn = realUrl.openConnection();  
            // 设置通用的请求属性  
            conn.setRequestProperty("accept", "*/*");  
            conn.setRequestProperty("connection", "Keep-Alive");  
            conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)");  
            // 发送POST请求必须设置如下两行  
            conn.setDoOutput(true);  
            conn.setDoInput(true);  
            // 获取URLConnection对象对应的输出流  
            out = new PrintWriter(conn.getOutputStream());  
            // 发送请求参数  
            out.print(param);  
            // flush输出流的缓冲  
            out.flush();  
            // 定义BufferedReader输入流来读取URL的响应  
            in = new BufferedReader(new InputStreamReader(conn.getInputStream(),"UTF-8"));  
            String line;  
            while ((line = in.readLine()) != null) {  
                result += line;  
            }  
        } catch (Exception e) {  
            logger.error(e.getMessage(), e);  
            throw e;  
        }  
        // 使用finally块来关闭输出流、输入流  
        finally {  
            try {  
                if (out != null) {  
                    out.close();  
                }  
                if (in != null) {  
                    in.close();  
                }  
            } catch (IOException ex) {  
                logger.error(ex.getMessage(), ex);  
                throw ex;  
            }  
        }  
        return result;  
    }  
      
    /**  
     * 向指定URL发送GET方法的请求  
     *   
     * @param url  
     *            发送请求的URL  
     * @param param  
     *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。  
     * @return URL 所代表远程资源的响应结果  
     */  
    public static String sendGetReuqest(String url, String param) throws Exception{  
        String result = "";  
        BufferedReader in = null;  
        try {  
            String urlNameString = url + "?" + param;  
            URL realUrl = new URL(urlNameString);  
            // 打开和URL之间的连接  
            URLConnection connection = realUrl.openConnection();  
            // 设置通用的请求属性  
            connection.setRequestProperty("accept", "*/*");  
            connection.setRequestProperty("connection", "Keep-Alive");  
            connection.setRequestProperty("user-agent",  
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");  
            // 建立实际的连接  
            connection.connect();  
            // 定义 BufferedReader输入流来读取URL的响应  
            in = new BufferedReader(new InputStreamReader(  
                    connection.getInputStream(),"UTF-8"));  
            String line;  
            while ((line = in.readLine()) != null) {  
                result += line;  
            }  
        } catch (Exception e) {  
            logger.error(e.getMessage(), e);  
            throw e;  
        }  
        // 使用finally块来关闭输入流  
        finally {  
            try {  
                if (in != null) {  
                    in.close();  
                }  
            } catch (Exception e2) {  
                logger.error(e2.getMessage(), e2);  
                throw e2;  
            }  
        }  
        return result;  
    }  
}